CN219151682U

CN219151682U - Coarse-fine integrated composite hard alloy milling cutter

Info

Publication number: CN219151682U
Application number: CN202223197330.3U
Authority: CN
Inventors: 马锡庆; 赵龙; 宗传道
Original assignee: Yuantao Changzhou Precision Cutting Technology Co ltd
Current assignee: Yuantao Changzhou Precision Cutting Technology Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-06-09
Anticipated expiration: 2032-11-29

Abstract

The utility model provides a rough and fine integrated composite hard alloy milling cutter, which comprises a cutter handle, wherein the front end of the cutter handle is provided with a cutter tip, the cutter tip is provided with a bottom cutting edge, the rear end of the bottom cutting edge is connected with a section of peripheral edge part, the peripheral edge part is provided with four chip grooves, the front end of the peripheral edge part is provided with a C chamfer angle, the peripheral edge part comprises a rough tooth edge part and a fine tooth edge part which are sequentially arranged, the rough tooth edge part is circumferentially provided with four rough tooth edges in a corrugated shape, the fine tooth edge part is circumferentially provided with four fine tooth edges, each fine tooth edge is connected with the rear end of a rough tooth edge, the edge diameter of each fine tooth edge is larger than that of the rough tooth edge, the rough tooth edge has a peripheral edge relief angle, and the fine tooth has two peripheral edge relief angles. The cutter adopts one cutter to realize rough cutting and finish machining, reduces the times of cutter changing and improves the efficiency.

Description

Coarse-fine integrated composite hard alloy milling cutter

Technical Field

The utility model relates to the technical field of cutters, in particular to a rough and fine integrated composite hard alloy milling cutter which is used for milling, rough cutting and fine machining of automobile parts, mechanical parts and the like.

Background

In the machining process of certain automobile parts and mechanical parts, large allowance is required to be removed from the parts, meanwhile, the surface of the parts is required to be machined by adopting a finish machining milling cutter, and if the finish machining milling cutter is directly used for machining, the efficiency is very low because the allowance is limited in each removal, so that in order to improve the production efficiency, a common hard alloy wave blade milling cutter is commonly used for removing the large allowance and coarsening in enterprises at present, and then a finish machining milling cutter is additionally used for finish milling; in addition, two cutters are adopted to be replaced in the processing process, new assembly errors can be introduced in the replacement of the cutters, and certain time is required to be occupied in the adjustment of the cutters, so that the production efficiency is affected.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the utility model provides a coarse-fine integrated composite hard alloy milling cutter, which aims to solve the problems of cutter changing and efficiency in the process of removing large allowance on parts in the prior art.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a thick integrative compound carbide milling cutter of smart, includes the handle of a knife, the front end of handle of a knife is equipped with the knife tip, be equipped with the bottom cutting edge on the knife tip, one section peripheral cutting edge portion is connected to the rear end of bottom cutting edge, peripheral cutting edge portion is equipped with four junk slots, peripheral cutting edge portion front end is equipped with C chamfer, peripheral cutting edge portion is including the thick tooth cutting edge portion and the smart tooth cutting edge portion that set gradually, be equipped with the thick tooth cutting edge of four ripple shapes along circumference on the thick tooth cutting edge portion, be equipped with the smart tooth cutting edge of four conventional structures along circumference on the smart tooth cutting edge portion, every smart tooth cutting edge all connects at a thick tooth cutting edge rear end, just the sword footpath of smart tooth cutting edge is greater than the sword footpath of thick tooth cutting edge, can realize smart processing, thick tooth cutting edge has a week cutting edge relief angle, smart tooth has two week cutting edge relief angles.

Preferably, the cutting edge of the corrugated thick tooth edge is a sinusoidal corrugated cutting edge.

Specifically, the bottom cutting edge is provided with a planar first flank surface with a bottom edge relief angle of 9 degrees and a planar second flank surface with a bottom edge relief angle of 22 degrees.

Specifically, the peripheral edge relief angle of the rough tooth edge is 10 degrees.

Specifically, the two peripheral edge relief angles of the fine tooth edge are a first peripheral edge relief angle and a second peripheral edge relief angle respectively, the first peripheral edge relief angle is 10 degrees, and the second peripheral edge relief angle is 22 degrees. The fine tooth blade is provided with two rear angles, on one hand, the front angle and the rear angle of the groove form a cutting edge, and the cutting property is ensured; on the other hand, the clearance between the cutting edge and the workpiece is ensured by increasing the relief angle of the second peripheral edge, so that heat dissipation during cutting is realized, and meanwhile, the strength of the cutting edge is ensured.

Preferably, the junk slot is right spiral, and the inclination angle is 45 degrees.

Furthermore, the chip grooves are of unequal tooth pitches and of U-shaped structures.

Preferably, the shank is cylindrical.

The beneficial effects of the utility model are as follows:

(1) The wave blade design, through the design positive and negative curve wave blade, make the cutter directly can realize the large feed and cut the rough machining of big draft, realize dividing tooth chip breaking function, reduce the iron fillings volume and make it discharge smoothly.

(2) The 4 45-degree right-handed chip grooves can reduce cutting resistance during milling, high rigidity is guaranteed, the chip removal space is greatly increased due to the U-shaped groove structure, scrap iron can be smoothly discharged, cutter vibration can be reduced due to unequal tooth pitch design, and surface quality is improved.

(3) The edge diameter of the fine tooth edge part at the rear end is larger than that of the coarse tooth edge part, so that the rigidity of the cutter is improved, and the fine machining efficiency is improved.

(4) The design of the chamfer of the cutting tip C can improve the collapse resistance of the cutter during the rough cutting and prolong the service life of the cutter.

(5) The rough cutting and finish machining capability is realized by adopting one cutter, the cutter changing times are reduced, and the efficiency is improved.

Drawings

The utility model is further described below with reference to the drawings and examples.

Fig. 1 is a schematic view of the structure of the milling cutter according to the present utility model.

Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.

Fig. 3 is a schematic side view of a milling cutter.

Fig. 4 is a schematic view of the structure of the nose.

Fig. 5 is an enlarged schematic view of the structure at B in fig. 4.

In the figure: 1. the tool comprises a tool handle, 2, a tool nose, 3, a rough tooth blade part, 4, a fine tooth blade part, 5, a chip groove, 6, a C chamfer, 7, a bottom cutting blade, 8, a rough tooth blade, 9, a fine tooth blade, 12, a first rear tool face, 13 and a second rear tool face.

Detailed Description

The present utility model will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the utility model only by way of illustration, and therefore it shows only the constitution related to the utility model.

As shown in fig. 1, the rough and fine integrated composite hard alloy milling cutter is integrally made of hard alloy and comprises a cylindrical cutter handle 1 for clamping, wherein the front end of the cutter handle 1 is provided with a cutter tip, the cutter tip is provided with a bottom cutting edge 7, the rear end of the bottom cutting edge 7 is connected with a section of peripheral edge part, the peripheral edge part is provided with four 45-degree right spiral chip grooves 5, and the chip grooves 5 are of unequal tooth pitch design and are of U-shaped structures. As shown in fig. 2, the front end of the peripheral edge portion is provided with a C chamfer 6, the peripheral edge portion includes a coarse tooth edge portion 3 and a fine tooth edge portion 4 which are sequentially arranged, four corrugated coarse tooth edges 8 are circumferentially arranged on the coarse tooth edge portion 3, and preferably, the cutting edges of the corrugated coarse tooth edges 8 are sinusoidal corrugated cutting edges. The fine tooth blade part 4 is provided with four fine tooth blades 9 with conventional structures along the circumferential direction, each fine tooth blade 9 is connected to the rear end of a coarse tooth blade 8, the blade diameter of each fine tooth blade 9 is larger than that of each coarse tooth blade 8, fine machining can be achieved, each coarse tooth blade 8 has a peripheral edge relief angle, and the peripheral edge relief angle of each coarse tooth blade 8 is 10 degrees. The fine tooth blade 9 has two peripheral edge relief angles, namely a first peripheral edge relief angle and a second peripheral edge relief angle, wherein the first peripheral edge relief angle is 10 degrees, and the second peripheral edge relief angle is 22 degrees.

As shown in fig. 3, the number of the bottom cutting edges 7 is four, and the adjacent cutting edges have first and second indexing angles of different circumferential angles, wherein the angle alpha of the first indexing angle is 95 degrees, and the angle beta of the second indexing angle is 85 degrees.

As shown in fig. 4 and 5, the bottom cutting edge 7 is provided with a planar first flank surface 12 having a bottom edge relief angle of 9 ° and a planar second flank surface 13 having a bottom edge relief angle of 22 °.

While the foregoing is directed to the preferred embodiment of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims

1. A coarse-fine integrated composite hard alloy milling cutter is characterized in that: including the handle of a knife, the front end of handle of a knife is equipped with the knife tip, be equipped with the bottom cutting edge on the knife tip, the rear end connection one section peripheral cutting edge portion of bottom cutting edge, peripheral cutting edge portion is equipped with four junk slots, peripheral cutting edge portion front end is equipped with C chamfer, peripheral cutting edge portion is including the thick tooth cutting edge portion and the smart tooth cutting edge portion that set gradually, be equipped with the thick tooth cutting edge of four ripple shapes along circumference on the thick tooth cutting edge portion, be equipped with four smart tooth cutting edges along circumference on the smart tooth cutting edge portion, every smart tooth cutting edge all connects at a thick tooth cutting edge rear end, just the sword footpath of smart tooth cutting edge is greater than the sword footpath of thick tooth cutting edge, thick tooth cutting edge has a week sword trailing angle, smart tooth has two week sword trailing angles.

2. The coarse-fine integrated composite cemented carbide milling cutter according to claim 1, wherein: the cutting edge of the corrugated rough tooth edge is a sinusoidal corrugated edge cutting edge.

3. The coarse-fine integrated composite cemented carbide milling cutter according to claim 1, wherein: the bottom cutting edge is provided with a planar first flank surface having a bottom edge relief angle of 9 degrees and a planar second flank surface having a bottom edge relief angle of 22 degrees.

4. The coarse-fine integrated composite cemented carbide milling cutter according to claim 1, wherein: the peripheral edge relief angle of the rough tooth edge is 10 degrees.

5. The coarse-fine integrated composite cemented carbide milling cutter according to claim 1, wherein: the two peripheral edge relief angles of the fine tooth edge are a first peripheral edge relief angle and a second peripheral edge relief angle respectively, the first peripheral edge relief angle is 10 degrees, and the second peripheral edge relief angle is 22 degrees.

6. The coarse-fine integrated composite cemented carbide milling cutter according to claim 1, wherein: the chip groove is right spiral, and the inclination angle is 45 degrees.

7. The coarse-fine integrated composite cemented carbide milling cutter according to claim 1, wherein: the groove type of the chip removal groove is of a U-shaped structure and is unequal in tooth pitch.

8. The coarse-fine integrated composite cemented carbide milling cutter according to claim 1, wherein: the knife handle is cylindrical.